CN105580826B - A kind of herbicidal composition containing fluorine chloropyridine ester and nicosulfuron - Google Patents
A kind of herbicidal composition containing fluorine chloropyridine ester and nicosulfuron Download PDFInfo
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- CN105580826B CN105580826B CN201610145992.6A CN201610145992A CN105580826B CN 105580826 B CN105580826 B CN 105580826B CN 201610145992 A CN201610145992 A CN 201610145992A CN 105580826 B CN105580826 B CN 105580826B
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- nicosulfuron
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
- A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
- A01N47/36—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N< containing the group >N—CO—N< directly attached to at least one heterocyclic ring; Thio analogues thereof
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
- A01N43/40—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings
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Abstract
The invention belongs to pesticide herbicide technical fields, and in particular to be suitable for a kind of herbicidal composition containing fluorine chloropyridine ester and nicosulfuron of corn field.The weight ratio ranging from 1 of active ingredient fluorine chloropyridine ester and nicosulfuron：0.6 to 1：40.The present invention expands herbicide controlling spectrum, enhances preventive effect, and avoiding to prevent and kill off using single herbicide can cause Weed Resistance quickly to occur, and delays the generation of herbicide resistance, reduces dosage, reduces use cost, mitigates environmental pollution.
Description
Technical field
The invention belongs to pesticide herbicide technical fields, and in particular to one kind suitable for corn field contains fluorine chloropyridine ester
With the herbicidal composition of nicosulfuron.
Background technology
Corn is one of China's Three major grain crops, while being also important feed and the raw material of industry.China's jade in 2004
Rice cultivated area is up to 25,580,000 hm2, the 2nd, the world is occupied, but per unit area yield is 5154kg/hm2, the U.S. Jin Zhan, Israel, New Zealand etc.
50% or so of country.Weed infestation be influence crop yield one of principal element, the annual crop smothering area of China's corn field there are about
6670000 hm2, the underproduction up to 10% or more, even No kernels or seeds are gathered, as in a year of scarcity for the serious field of crop smothering [Wei Shouhui etc., plant protection journal, the 33rd
Rolled up for the 2nd phase].
The 1980s, the survey showed that, and corn field weed group is mainly by lady's-grass, barnyard grass, lamb's-quarters, Amaranthus retroflexus, ox
The weeds such as muscle grass form.Under the long term of chemical herbicide, very big change has occurred in structure of community in recent years, and the northeast spring is beautiful
The extent of injury of the weeds such as rice area dayflower, sowthistle, meadow pine constantly rises, and gradually develops into field main weeds, and North China
Summer corn area difficulty cut weeds the dominance of acalypha copperleaf, piemarker in field significantly improve [Wei Shouhui etc., plant protection journal, the 33rd
Rolled up for the 2nd phase].
Herbicide is the common measure of current control of weeds, has weight to promoting corn yield to improve and saving planting cost
The effect wanted.But long-term, the large scale application of herbicide, there are Weed Resistance, populations to drill for farmland weed chemical control
It is on the rise for drug injury problem, seriously affects the safety of the high yield and good harvest and succession crop of corn.The variation of field grass phase
Need the dosage for increasing conventional herbicide kind that could maintain certain preventive effect, but with the increasing of herbicide dosage, to environment
The pollution getting worse of generation, and Agricultural biodiversity can be destroyed and lead to generation [Wei Shouhui etc., the plant of herbicide resistance
Object protects journal, the 2nd phase of volume 33].
Nicosulfuron, No. CAS is 111991-09-4；English name is Nicosulfuron, and English synonym is hu195;
DASUL;sl950;ACCENT;Accetn;MU 495;Milagro;Nisshin;EMA 1534;Motivell；Chinese synonym
It is Yu Nongle;Cigarette sulphur is grand;Nicosulfuron;Nicosulfuron (standard items);2- (4,6- dimethoxypyridin -2- base carbamyl ammonia
Base sulphonyl)-N, N- dimethyl nicotinamides;2- (4,6- dimethoxy -2- pyrimidinyl-amino formamido groups sulfonyl)-N, N- diformazans
Base niacinamide;2- [(4,6- dimethoxypyridins -2) amino] carbonyl] amino] sulfonyl] methyl] methyl benzoate;2-[(4,
6- dimethoxypyridin -2- bases carbamoyl) sulfonamides]-N, N- dimethyl nicotinamides;1- (4,6- dimethoxypyridins -2-
Base) -3- (3- dimethyl carbamoyl -2- pyridine sulfonyl sulfonyls) urea;1- (4,6- dimethoxypyridin -2- bases) -3- (3- dimethylaminos
Base formylpyridine -2- bases sulphonyl) urea.Nicosulfuron is inner-adsorption conduction-type herbicide, can be by the cauline leaf of plant and root absorption simultaneously
Rapid conduction, by inhibiting the activity of acetolactate synthestase in plant, prevent branched-chain amino acid achievement propylhomoserin, leucine with it is different
Leucine synthesizes and then prevents cell division, and sensitive plant is made to stop growing.Weeds damage symptoms be lobus cardiacus flavescences, chlorosis, in vain
Change, then other leaves turn yellow successively from top to bottom.Generally after administration 3~4 days it can be seen that weeds damage symptoms, annual miscellaneous
Careless 1~3 week dead, and perennial broadleaf weed is suppressed below 6 leaves, stops growing, loses the competitiveness of same corn.High dose
Also perennial weeds can be made dead.Controlling object include barnyard grass, lady's-grass, eleusine indica, green bristlegrass, Amaranthus retroflexus, purslane, piemarker,
Field bindweed, field thistle, sowthistle, setaria glauca, wild broomcorn millet, black nightshade, elscholtiza, Siberian cocklebur, dayflower, bog marshcress herb, penny cress, meadow pine,
The annual grassy weeds such as artemisia, setose thistle, wild oat and perennial broadleaf weed.Use age was 2~5 leaf phases after maize seedling, 1 year
2~4 leaf phase of raw weeds, before the 6 leaf phase of perennial weeds, dispenser when most of weeds all sprout, herbicidal effect is best, to corn
Safety.Soil moisture, air themperature suitable for when, be conducive to Assimilation and conductivity of the weeds to medicament.Prolonged drought, low temperature and air
Relative humidity is less than unsuitable dispenser when 65%.It should generally select that morning and evening temperature is low, wind hour dispenser;Dispenser preferably increases table when arid
Face activating agent.Prolonged drought is such as rainy in the recent period, and field humidity improves after waiting for rain, then dispenser or applies again after having the filling of irrigation condition
Medicine, although spraying time is delayed, herbicidal effect can be better than dispenser before rain.Fan spray head is preferably selected in artificial dispenser, is applied along ridge
Medicine once sprays a ridge, determines sprinkler height, pressure, the speed of travel, cannot control with dispenser is moved, to ensure that sprinkling is uniform.It is different
Corn variety is variant to the sensibility of medicament, and safety sequence is that dent type ＞ flint corn ＞ pop corn ＞ sweet teas are beautiful
Rice.It is sensitive to the medicine before the general 2 leaf phase of corn and after 10 leaf phases.Corn or pop corn seed farm, self-mating system are to the agent
Sensitivity is not used.Nicosulfuron has the advantages that bioactivity is high, selectivity is strong, a variety of to succession crop safety etc., and price is low
It is honest and clean, it is the common herbicide of cauline leaf process after current corn field seedling, but its poisoning phenomenon generated every year is also very universal.Generally
In the case of, corn is stronger to the resistance and metabolic capability of nicosulfuron in three to five leaf phases, therefore, it is necessary to which strictly control cigarette is phonetic
The sulphur grand use age, otherwise it is also easy to produce poisoning.In addition, high temperature and drought weather, dosage are excessive（Active ingredient is more than 72g/h
M2）, spraying is uneven or mixed with organophosphorus pesticide etc. can cause corn nicosulfuron poisoning.Corn is to herbicide
There are breed differences in sensibility, and a small number of corn hybrid seeds are more sensitive, this is also one that corn nicosulfuron poisoning takes place frequently
Key factor, sensitive varieties after by poisoning recovery capability it is poor, underproduction phenomenon than it is more serious Wang Hengliang etc., Henan Agricultural Sciences,
2013,42（11）
Fluorine chloropyridine ester, English common name halauxifen-methyl.The Dow Agrosciences, LLC. was April 10 in 2014
Day obtains 93% fluorine chloropyridine ester active compound and registers temporarily, registration card number LS20140138, the micro- poison of toxicity.Fluorine chloropyridine ester
(Halauxifen-methyl) it is a kind of pyridine carboxylic acid class herbicide.Fluorine chloropyridine ester is fragrant in synthetic auxin class herbicide
First product in the new chemical type of yl pyridines acid.It simulates the effect of high dose plant growth regulator, causes specific
Auxin adjust gene overstimulation, interfere multiple growth courses of sensitive plant.Fluorine chloropyridine ester is used for broad-leaved after bud
Weeds control.Herbicide containing fluorine chloropyridine ester can be by preventing and kill off partial resistance weeds, such as clearvers, chickweed and cannabis
Weeds carry out resistance management.In addition, fluorine chloropyridine ester can be carried by microorganism fast degradation in the environment for succeeding crop plantation
For larger flexibility.There is preferable preventive effect to Amaranthus retroflexus, piemarker, yellow clever nutgrass flatsedge.
With the development of Development of China's Urbanization, rural laborer is largely transferred to cities and towns, and concentration of landholdings degree improves, corn
Field weed prevention is more and more stronger to the dependence of herbicide.Efficiently, low toxicity, low-residual, small succession crop harm are current weedings
The important directions of agent research and development.
Existing insufficient in actual application in order to make up above each single dose, the present inventor furthers investigate,
It is had been surprisingly found that on the basis of a large amount of formula indoor screening and field control effectiveness test, herbicidal composition of the invention is centainly being matched
Than being compounded in range, there is excellent control effect, the preventive effect shown and activity level to exceed each group corn field weed
The superposition divided has unexpected synergistic function, solves above two herbicide in herbicide controlling spectrum, preventive effect and safety
Existing limitation has achieved the purpose that expand herbicide controlling spectrum, has improved preventive effect, improves safety, can meet current agricultural to removing
The demand of careless agent.
Invention content
It is an object of the invention to the defect for current corn field herbicide, a kind of broad weed-killing spectrum, herbicidal effect are provided
It is good, safe to use, be conducive to the herbicidal composition of corn field weed comprehensive treatment.
Present invention employs following technical solutions：
The present invention relates to a kind of herbicidal composition containing fluorine chloropyridine ester and nicosulfuron.
Technical solution of the present invention, it is characterised in that：The weight ratio range of active ingredient fluorine chloropyridine ester and nicosulfuron
It is 1：0.6 to 1：40.
Another preferred scheme of the invention, it is characterised in that：The weight of active ingredient fluorine chloropyridine ester and nicosulfuron
Proportional region is 1：1.25 to 1：20.
Another preferred scheme of the invention, it is characterised in that：The weight of active ingredient fluorine chloropyridine ester and nicosulfuron
Proportional region is 1:2.5 to 1:10.
Another preferred scheme of the invention, it is characterised in that：The weight of active ingredient fluorine chloropyridine ester and nicosulfuron
Ratio is 1:2.5 or 1:5、1:7.5、1:10.
The present invention relates to a kind of herbicidal composition preparation, which is missible oil, aqueous suspension agent, oil hang
Floating agent, wettable powder, granule or water dispersible granules, herbicidal composition preparation are included in pesticide-acceptable, one kind
Or it is a variety of selected from wetting agent, emulsifier, dispersant, thickener, antifreezing agent, disintegrant, binder, antifoaming agent, carrier or filling
The auxiliary agent of agent.
The present invention relates to purposes of the Herbicidal combinations in preventing corn field weed, the corn field weed is
The weeds such as Amaranthus retroflexus, purslane, piemarker, acalypha copperleaf, lady's-grass, eleusine indica, barnyard grass, green bristlegrass, setariafaberi, yellow clever nutgrass flatsedge.
Herbicidal composition of the present invention can also add carrier, emulsifier, dispersant, wetting in addition to two kinds of active ingredient
The auxiliary agent that agent, disintegrant, thickener, adhesive etc. agriculturally allow, according to well known to a person skilled in the art methods to be processed into
A variety of dosage forms of the suitable agricultural use such as water dispersible granules, oil-suspending agent, wettable powder, granule.
Emulsifier is the compound of one or more anion, nonionic surfactant, and nonionic surfactant is such as
Fatty acid esters of sorbitan, alkylphenol-polyethenoxy polyethenoxy ether, polyoxyethylene alkyl amine etc., anion surfactant
Such as calcium dodecyl benzene sulfonate, neopelex can be one such or two or more composition.Dispersion
Agent can be selected from polycarboxylate, lignosulfonates, alkylnaphthalene sulfonate, alkyl phenol polyoxyethylene ether, dodecyl benzene sulfonic acid
It is one or more in sodium, alkyl polyoxyethylene ether sulfonate or in alkylphenol-polyethenoxy base ether formaldehyde condensation products；Wetting agent
Naphthalene sulfonate, lauryl sodium sulfate, Teepol, fatty alcohol polyoxyethylene ether, Nonyl pheno can be selected from
It is one or more in ether, sorbitan fatty acid ester polyoxyethylene ether, alkylsulfonate；Disintegrant can be selected from sulfuric acid
Ammonium, urea, starch and its derivative, low-substituted hydroxypropyl cellulose, polyvinylpyrrolidone, sodium alginate, calcium chloride, chlorination
It is one or more in sodium, magnesium chloride, aluminium chloride；Adhesive can be selected from hydroxyethyl cellulose, soluble starch, poly- second two
Alcohol, methylcellulose, polycarboxylic acid and water-soluble high-molecular compound sodium carboxymethylcellulose, polyvinyl alcohol, paraffin, gypsum,
It is one or more in hydroxypropyl methyl cellulose, polyacrylamide；Carrier can be selected from white carbon, kaolin, bentonite, light
In matter calcium carbonate, gypsum, attapulgite, urea, sucrose, diatomite, bentonite, ammonium sulfate, urea, potassium dihydrogen phosphate, clay
It is one or more.
Advantageous effect：
1. having expanded herbicide controlling spectrum.Fluorine chloropyridine ester has good effect to corn field weed piemarker, also has to purslane
Certain preventive effect is invalid to gramineous weeds sativa, barnyard grass；Nicosulfuron has good effect to purslane, lady's-grass, barnyard grass
Fruit, it is poor to piemarker effect.Have complementary advantages after two kinds of mixture of herbicides, has good effect to corn weeds in field.
2. enhancing preventive effect.Interaction type is addition and has synergistic effect, preventive effect after two kinds of mixture of herbicides
Enhancing is better than effect is applied alone.
Weed Resistance can be caused quickly to occur 3. avoiding and being prevented and kill off using single herbicide, delay the hair of herbicide resistance
It is raw.
4. reducing dosage, use cost is reduced, mitigates environmental pollution.
Specific implementation mode
The present invention will be further described With reference to embodiment, but the present invention should not be interpreted as limited to these
Embodiment.
Embodiment 1 prepares fluorine chloropyridine ester（1g）And nicosulfuron（5g）Aqueous suspension agent
96% fluorine chloropyridine ester（halauxifen-methyl）Active compound, 95% nicosulfuron（nicosulfuron）Active compound
Prepare aqueous suspension agent.It weighs quantitative fluorine chloropyridine ester, nicosulfuron active compound respectively with electronic balance, emulsifier special is first added
After dissolving, the n,N-Dimethylformamide for adding 2 times is diluted to 1% water to being completely dissolved with 0.1% Tween-80 aqueous solution
Suspending agent is spare.It is prepared into active ingredient fluorine chloropyridine ester（1g）And nicosulfuron（5g）Compound aqueous suspension agent.
Embodiment 2 prepares fluorine chloropyridine ester（1g）And nicosulfuron（10g）Compound aqueous suspension agent
Formulation method weighs fluorine chloropyridine ester and is prepared by nicosulfuron active compound with embodiment 1.
Embodiment 3 prepares fluorine chloropyridine ester（1g）And nicosulfuron（20g）Compound aqueous suspension agent
Formulation method weighs fluorine chloropyridine ester and is prepared by nicosulfuron active compound with embodiment 1.
Embodiment 4 prepares fluorine chloropyridine ester（1g）And nicosulfuron（40g）Compound aqueous suspension agent
Formulation method weighs fluorine chloropyridine ester nicosulfuron active compound and is prepared with embodiment 1.
Embodiment 5 prepares fluorine chloropyridine ester（2g）And nicosulfuron（5g）Compound aqueous suspension agent
Formulation method weighs fluorine chloropyridine ester and is prepared by nicosulfuron active compound with embodiment 1.
Embodiment 6 prepares fluorine chloropyridine ester（2g）And nicosulfuron（10g）Compound aqueous suspension agent
Formulation method weighs fluorine chloropyridine ester and is prepared by nicosulfuron active compound with embodiment 1.
Embodiment 7 prepares fluorine chloropyridine ester（2g）And nicosulfuron（20g）Compound aqueous suspension agent
Formulation method weighs fluorine chloropyridine ester and is prepared by nicosulfuron active compound with embodiment 1.
Embodiment 8 prepares fluorine chloropyridine ester（2g）And nicosulfuron（40g）Compound aqueous suspension agent
Formulation method weighs fluorine chloropyridine ester and is prepared by nicosulfuron active compound with embodiment 1.
Embodiment 9 prepares fluorine chloropyridine ester（4g）And nicosulfuron（5g）Compound aqueous suspension agent
Formulation method weighs fluorine chloropyridine ester and is prepared by nicosulfuron active compound with embodiment 1.
Embodiment 10 prepares fluorine chloropyridine ester（4g）And nicosulfuron（10g）Compound aqueous suspension agent
Formulation method weighs fluorine chloropyridine ester and is prepared by nicosulfuron active compound with embodiment 1.
Embodiment 11 prepares fluorine chloropyridine ester（4g）And nicosulfuron（20g）Compound aqueous suspension agent
Formulation method weighs fluorine chloropyridine ester and is prepared by nicosulfuron active compound with embodiment 1.
Embodiment 12 prepares fluorine chloropyridine ester（4g）And nicosulfuron（40g）Compound aqueous suspension agent
Formulation method weighs fluorine chloropyridine ester and is prepared by nicosulfuron active compound with embodiment 1.
Embodiment 13 prepares fluorine chloropyridine ester（8g）And nicosulfuron（5g）Compound aqueous suspension agent
Formulation method weighs fluorine chloropyridine ester and is prepared by nicosulfuron active compound with embodiment 1.
Embodiment 14 prepares fluorine chloropyridine ester（8g）And nicosulfuron（10g）Compound aqueous suspension agent
Formulation method weighs fluorine chloropyridine ester and is prepared by nicosulfuron active compound with embodiment 1.
Embodiment 15 prepares fluorine chloropyridine ester（8g）And nicosulfuron（20g）Compound aqueous suspension agent
Formulation method weighs fluorine chloropyridine ester and is prepared by nicosulfuron active compound with embodiment 1.
It is prepared by embodiment 16（Fluorine chloropyridine ester 8g）And nicosulfuron（40g）Compound aqueous suspension agent
Formulation method weighs fluorine chloropyridine ester and is prepared by nicosulfuron active compound with embodiment 1.
17 25g/L fluorine chloropyridine ester nicosulfurons of embodiment（halauxifen-methyl +nicosulfuron）SC
（1:2.5 suspending agent）
According to 1:2.5 proportionings weigh quantitative fluorine chloropyridine ester and nicosulfuron active compound crushes sieving, addition dispersion
Then agent, thickener, antiprecipitant, antifoaming agent, antifreezing agent and water are carried out sticky flowable made of ultramicro grinding using wet method
Suspended substance.
18 25g/L fluorine chloropyridine ester nicosulfurons of embodiment（halauxifen-methyl +nicosulfuron）SC
（1:5 suspending agents）
According to 1:5 proportionings weigh quantitative fluorine chloropyridine ester and nicosulfuron active compound crushes sieving, add dispersant,
Then thickener, antiprecipitant, antifoaming agent, antifreezing agent and water are carried out sticky flowable made of ultramicro grinding using wet method
Suspended substance.
19 25g/L fluorine chloropyridine ester nicosulfurons of embodiment（halauxifen-methyl +nicosulfuron）SC
（1:7.5 suspending agent）
According to 1:7.5 proportionings weigh quantitative fluorine chloropyridine ester and nicosulfuron active compound crushes sieving, addition dispersion
Then agent, thickener, antiprecipitant, antifoaming agent, antifreezing agent and water are carried out sticky flowable made of ultramicro grinding using wet method
Suspended substance.
20 25g/L fluorine chloropyridine ester nicosulfurons of embodiment（halauxifen-methyl +nicosulfuron）SC
（1:10 suspending agents）
According to 1:10 proportionings weigh quantitative fluorine chloropyridine ester and nicosulfuron active compound crushes sieving, addition dispersion
Then agent, thickener, antiprecipitant, antifoaming agent, antifreezing agent and water are carried out sticky flowable made of ultramicro grinding using wet method
Suspended substance.
21 laboratory experiment of embodiment
1）Experimental condition
It is piemarker for examination weeds（Abutilon theophrastiM.）, purslane（Portulaca oleracea
L.）, lady's-grass（Digitaria sanguinalis(L.) Scop.）, barnyard grass（Echinochloa oryzicolaV.）.
The culture of experiment examination material, 25-35 DEG C of temperature, natural lighting are carried out in glasshouse.By quantitative piemarker, purslane, lady's-grass,
Barnyard grass seed is sowed in the plastic tub of a diameter of 9 cm, and weeds earthing 1-2 mm are put into the enamel tray equipped with water, make water gradual
It penetrates into, it is for use to be transferred to glasshouse after waiting water to be seeped into native table.
In addition to 1-2 days after spray cannot water, the periodically moisturizing in a manner of the infiltrating irrigation of bottom, to keep soil moisture.
2）Experimental design
Reagent agent is 96% fluorine chloropyridine ester（halauxifen-methyl）Active compound, 95% nicosulfuron
（nicosulfuron）Aqueous suspension agent in active compound and embodiment 1~16.
Dosage is arranged, and fluorine chloropyridine ester sets 1,2,4,8 ga.i./ha, nicosulfuron sets 5,10,20,40ga.i./ha, fluorine
Chloropyridine ester and nicosulfuron active compound compound aqueous suspension agent dosage according to the numerical value in embodiment 1~16.
It is tested in lady's-grass, 1 heart stage of 2 leaf of barnyard grass Tang；The piemarker 2-5 leaf phases；The processing of purslane 4-6 leaf phase cauline leaf even sprayings.
Sprinkling system, Fan spray head, in conjunction with sprinkler pressure, flow etc., by practical spray face are automatically controlled using ASS-4 types
Product（1.1 m2）Spray 50 mL liquids（Equivalent 30 kg of mu water consumption）, the speed of service has been debugged, pending plastic tub is equal
It is even to be arranged on spraying platform, even spraying processing.0.4 KPa of atomisation pressure, Fan spray head flow 800mL/min.Extremely by low amounts
A large amount sprays successively.Often processing is repeated 4 times.
3）Test result calculates
With synergy type of the Gowing methods evaluation after mixed.
Gowing law theory preventive effect calculating formulas are：
E0=X+Y ×（100-X）÷100
X, Y are respectively the anti-valid value of actual measurement of two single doses in formula（%）, E is the anti-valid value of actual measurement that different ratio is used with（%）,
E0For theoretical anti-valid value（%）.As E- E0Between -10~10 when for addition, E- E0>It is synergistic effect when 10, E- E0<-
It is antagonism when 10.
1 fluorine chloropyridine ester of table and nicosulfuron mixture synergy indoor measurement
As shown in Table 1, fluorine chloropyridine ester has good effect to corn field weed piemarker, also has to purslane certain anti-
Effect is invalid to gramineous weeds sativa, barnyard grass；Nicosulfuron has good effect to purslane, lady's-grass, barnyard grass, to piemarker
Effect is poor.
As shown in Table 1, piemarker effect is increased after fluorine chloropyridine ester and nicosulfuron compounding, E-E0 values are just, to show as
Addition.Weight ratio is 1：E-E0 values are up to 6.5 when 5, and followed by weight ratio is 1：E-E0 values are 4.8 when 20, then
It is secondary be weight ratio be 1:E-E0 values are 4.6 when 2.5.Weight ratio is 1:0.6 to 1：E-E0 values are just to show as in 40 ranges
Addition, weight ratio range are 1:1.25 to 1:E-E0 values are larger between 20, and weight ratio range is 1:2.5 to 1:10 it
Between E-E0 values it is very big.
As shown in Table 1, purslane effect is increased after fluorine chloropyridine ester and nicosulfuron compounding, E-E0 values are just performance
For addition or synergistic effect.Weight ratio is 1：E-E0 values are up to 10.1 when 5, and followed by weight ratio is 1：1.25 when
E-E0 values be 8.8, be again weight ratio be 1：E-E0 values are 4.3 when 10.Weight ratio is 1:0.6 to 1：E-E0 in 40 ranges
Value is just to show as addition, and weight ratio range is 1:1.25 to 1:E-E0 values are larger between 20, and weight ratio range is
1:2.5 to 1:E-E0 values are very big between 10.
As shown in Table 1, lady's-grass effect is increased after fluorine chloropyridine ester and nicosulfuron compounding, E-E0 values are just, to show as
Addition.Weight ratio is 1：E-E0 values are up to 9.2 when 5, and followed by weight ratio is 1:E-E0 values are 8.1 when 2.5, then
It is secondary be weight ratio be 1:E-E0 values are 5.4 when 10.Weight ratio is 1:0.6 to 1：E-E0 values are just to show as adding in 40 ranges
At effect, weight ratio range is 1:1.25 to 1:E-E0 values are larger between 20, and weight ratio range is 1:2.5 to 1:Between 10
E-E0 values are very big.
As shown in Table 1, barnyard grass effect is increased after fluorine chloropyridine ester and nicosulfuron compounding, E-E0 values are just, to show as
Addition.Weight ratio is 1：E-E0 values are up to 6 when 5, and followed by weight ratio is 1：E-E0 values are 5.5 when 10, again
Be weight ratio be 1：E-E0 values are 5.4 when 2.5.Weight ratio is 1:0.6 to 1：E-E0 values are just to show as adding in 40 ranges
At effect, weight ratio range is 1:1.25 to 1:E-E0 values are larger between 20, and weight ratio range is 1:2.5 to 1:Between 10
E-E0 values are very big.
In conclusion fluorine chloropyridine ester has complementary advantages after being compounded with nicosulfuron, it is equal to piemarker, purslane, lady's-grass, barnyard grass
There are good effect, compounding effect to belong to addition or synergistic effect.
22 field control effect of embodiment measures
1. experimental condition
1）The selection of crop and cultivar
Corn variety is beautiful jade 9 and iron 900, and interlacing intersects plantation, plantation on June 17th, 2015, corn seeding row
Away from 75cm, spacing in the rows 21cm, application rate adds up to about 3.5kg.
2）The selection of subjects weeds
Piemarker（Abutilon theophrasti M.）, purslane（Portulaca oleracea L.）, lady's-grass
（Digitaria sanguinalis (L.) Scop.）, eleusine indica（Eleusine indica L.）Deng.
3）Cultivation condition
Experiment corn field is located at the progress of the Dezhou City Shandong Province towns the Jiao Miao villages Liu Nan of the townshiies Liu Qiao.Experimental field 50 mu of corn area,
Experimental field periphery crop is also corn.It is experimental field loam, middle fertility, pH value 7.5, the content of organic matter 1.7%.Corn seeding
Apply U.S.'s methyl diammonium and the total 50kg of composite fertilizer of the U.S. per acre simultaneously（Two kinds of fertilizer press 1：1.5 using）, in addition at the beginning of August per acre
Using urea 30kg.
Milpa topography is flat, and broad irrigation on June 18 is primary after corn seeding, and July 5, full field watering was primary.
Experimental field preceding stubble plants wheat, and herbicide used is liked for wheat.
2. experimental design
1）Test medicine
7.5g/L fluorine chloropyridine esters（halauxifen-methyl）EC, 40g/L nicosulfuron（nicosulfuron）SC,
25g/L fluorine chloropyridine ester nicosulfurons（halauxifen-methyl +nicosulfuron）SC（Fluorine chloropyridine ester：The phonetic sulphur of cigarette
Grand is respectively 1：2.5、1:5、1:7.5、1:10）, i.e. embodiment 17-20 preparations.
2）Application method
Spraying instrument is noncomparable advanced knapsack sprayer, tests each processing and is watered 450 liters of even sprayings by per hectare.
In the processing of 2~5 leaf phase of corn field annual grassy weeds cauline leaf even spraying.
3）Spraying time and number
It tests and is carried out on July 4th, 2015, dispenser is primary altogether.The corn 4-5 leaf phases, grow fine when dispenser；Weeds 2-5
Ye Qi, based on piemarker, purslane, lady's-grass, eleusine indica.
3. drug effect computational methods
Calculation formula：
Control effect (%)=(weeds stubble number after the check plot number of weeds-treatment region medicine) check plots ÷ number of weeds × 100
Fresh weight preventive effect (%)=(blank district fresh grass weight-treatment region fresh grass weight) ÷ blank district fresh grass weight
×100
2 25g/L fluorine chloropyridine ester nicosulfurons SC of table is applied to corn field field efficacy measurement and (adjusts within 30 days after dispenser
It looks into)
As shown in Table 2,7.5g/L fluorine chloropyridine ester EC is excellent to piemarker effect, has certain preventive effect to purslane, to grass
Section's weeds lady's-grass, eleusine indica are invalid；40g/L nicosulfurons SC is excellent to purslane, lady's-grass, eleusine indica effect, to piemarker effect
Difference；The two complex preparation 25g/L fluorine chloropyridine ester nicosulfurons SC, which respectively matches comparison piemarker, purslane, lady's-grass, eleusine indica, to be had
Good effect.25g/L fluorine chloropyridine ester nicosulfurons SC (1:7.5) preventive effect is best, and total strain preventive effect reaches 97%, and fresh weight is anti-
Effect reaches 99.5%., followed by 25g/L fluorine chloropyridine ester nicosulfuron SC (1:And 25g/L fluorine chloropyridine ester nicosulfurons 5)
SC(1:10)。
By range estimation, herbicide damage, 25g/L fluorine chloropyridine ester nicosulfurons is not observed in field experiment
SC is to corn safety.
Compared with one of which active ingredient is used alone, present invention compounding expands herbicide controlling spectrum, and a dispenser can be controlled
Weeds in fabrication entire growth period, not only herbicidal effect is notable, but also environmentally friendly, right on second stubble crop without influence
The pollution of environment is small, to people, animal, birds and beneficial organism safety, is conducive to keep ecological balance.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the principle of the present invention, several improvement and combination can also be made, these are improved and combination is also answered
It is considered as protection scope of the present invention.
Claims (4)
1. a kind of herbicidal composition containing fluorine chloropyridine ester and nicosulfuron, it is characterised in that：Active ingredient fluorine chloropyridine
The weight ratio of ester and nicosulfuron is 1:5.
2. a kind of herbicidal composition containing fluorine chloropyridine ester and nicosulfuron according to claim 1, feature exist
In：The dosage of active ingredient fluorine chloropyridine ester and nicosulfuron is 4+20 g ai/ha.
3. according to a kind of herbicidal composition containing fluorine chloropyridine ester and nicosulfuron of claim 1-2 any one of them,
It is characterized in that, the preparation of the herbicidal composition be missible oil, aqueous suspension agent, oil-suspending agent, wettable powder, granule or
Water dispersible granules, herbicidal composition preparation be included in it is pesticide-acceptable, it is one or more selected from wetting agent, emulsifier,
The auxiliary agent of dispersant, thickener, antifreezing agent, disintegrant, binder, antifoaming agent, carrier or filler.
4. a kind of herbicidal composition containing fluorine chloropyridine ester and nicosulfuron according to claim 3 is in prevention corn
Purposes in field weed, the corn field weed are purslanes.
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| CN101808520A (en) * | 2007-08-27 | 2010-08-18 | 陶氏益农公司 | Synergistic herbicidal composition containing certain pyridine or pyrimidine carboxylic acids and certain cereal and rice herbicides |
| CN102316728A (en) * | 2008-11-24 | 2012-01-11 | 陶氏益农公司 | Safening 6-(trisubstituted phenyl)-4-amino-2-pyridinecarboxylate herbicide injury on direct seeded and transplanted paddy rice |
| CN104145982A (en) * | 2014-08-28 | 2014-11-19 | 联保作物科技有限公司 | Wheat field weeding composition and medicine preparation thereof |
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| CN101808520A (en) * | 2007-08-27 | 2010-08-18 | 陶氏益农公司 | Synergistic herbicidal composition containing certain pyridine or pyrimidine carboxylic acids and certain cereal and rice herbicides |
| CN102316728A (en) * | 2008-11-24 | 2012-01-11 | 陶氏益农公司 | Safening 6-(trisubstituted phenyl)-4-amino-2-pyridinecarboxylate herbicide injury on direct seeded and transplanted paddy rice |
| CN104145982A (en) * | 2014-08-28 | 2014-11-19 | 联保作物科技有限公司 | Wheat field weeding composition and medicine preparation thereof |
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